Index: /trunk/MagicSoft/Mars/mhbase/MBinning.cc
===================================================================
--- /trunk/MagicSoft/Mars/mhbase/MBinning.cc	(revision 3788)
+++ /trunk/MagicSoft/Mars/mhbase/MBinning.cc	(revision 3789)
@@ -64,5 +64,5 @@
 }
 
-MBinning::MBinning(Int_t nbins, Axis_t lo, Axis_t hi, const char *name, const char *opt="", const char *title=NULL)
+MBinning::MBinning(Int_t nbins, Axis_t lo, Axis_t hi, const char *name, const char *opt, const char *title)
 {
     fName  = name  ? name  : gsDefName.Data();
Index: /trunk/MagicSoft/Mars/mhbase/MFillH.cc
===================================================================
--- /trunk/MagicSoft/Mars/mhbase/MFillH.cc	(revision 3788)
+++ /trunk/MagicSoft/Mars/mhbase/MFillH.cc	(revision 3789)
@@ -343,5 +343,5 @@
 // status display.
 //
-void MFillH::SetDrawOption(Option_t *option="")
+void MFillH::SetDrawOption(Option_t *option)
 {
     fDrawOption = option;